Patent US3770627A successfully refreshed from Google Patents.
US3770627A
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US
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Containing and removing oil spills on water
Assignee: Phillips Petroleum Co
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Filing: 1971-12-07
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Granted: 1973-11-06
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Expires: 1991-12-07
Abstract
Abstract A METHOD IS PROVIDED FOR CONTAINING OIL ON A WATER SURFACE AND REMOVING THE OIL FROM THE WATER SURFACE BY FUSING A FINELY PARTICULATE POLYOLEFIN FLOATING ON THE SURFACE WITH THE OIL TO INCORPORATE THE OIL INTO A CRUST-LIKE FUSED MASS WHICH WILL ACT TO FORM A BOUNDARY AGAINST EXTENSION OF THE OIL MASS AND WHICH CAN BE EASILY SKIMMED FROM THE WATER SURFACE.
Inventors
- 👤 H Alquist
- 👤 R Werkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:10
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; E; E02; E02B; E02B15/00; E02B15/04; E02B15/042; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |